murray



2 Sheets-Sheet 1.

Patented Feb. 23, 1886.

(No Model.)

P. MURRAY. Jr. PAN ATTACHMENT.

No.v 886,866.-

Le i

8 WIM/8853:

(No Model.) 2 Sheets-Sheet 2.

P. MURRAY, Jr.

PAN ATTACHMENT.

No. 336,866. Patented Feb. 23, 1886.

.ame STATES ATENT Ormeaj PETER MURRAY, JR., OF NEVARK, ASSIGNOR TO HIMSELF, AND RICHARD` S. T. OISSEL AND ROBERT B. CISSEL, BOTH OF ELTZABETH, AND ALFRED N. LEVIS, OF NEWARK, NEV JERSEY.

FAN ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 336,866, dated February 23, 1886.

Application filed January 13. 1886. Serial No. 188,440. (No model.)

To all whom t may concern.-

Be it known that I, PETER MURRAY, J r., of Newark, in the county of Essex and State f New Jersey, have invented certain new and useiul Improvements in Automatic Fans, of which the following is a specification.

This invention has reference to an improved automatic fan that is suspended from the ceiling ol' an office or other space, so as to agitate Io the air in warm weather; and the invention consists ot' a tubular fanvshai'r, which is supported in bearings of a hanger-frameattached r to the ceiling, and of an interior rotary shaft that passes through said tubular shaft, and is guided in a central socket of the upper part of the hangerframe` said interior shaft being provided with a friction-disk that engages a frictiondisk of the fanshaft, so as to impart rotary motion to the saine. An adj ust-ing device arranged at the lower end ofthe tubular fan-shaft, by which the interior driving-shaft is adj usted higher or lower against the tension of a spiral spring pressing on its upper end, so as to establish or discontinue the frictional contact between the friction-disks. The adjusting device consists of an interiorly-threaded socket, which engages the lower threaded end of the tubular lan-shaft, and which is retained in position by a sliding collar having 3o a stop-tooth' that engages pne of the notches ot' the socket. rlhe hanger-frame is made of three arms that are cast integral with segmental sections of the shaft-bearings, said sections having ring-shaped extensions, which are united by filling the intermediate space with anti-friction metal. The hanger-frame is attached to the ceiling by a'three-armed frame or crab, having a central socket attached to the ceiling, said crab engaging the 4o enlarged heads of the hanger sections and supporting them rigidly on the ceiling.

In the accompanying drawings, Figure l represents a vertical central Asection of my improved automatic fan. Fig. l is a detail side View of the device by which the interior driv-v ing-shaft is raised or lowered. Fig. 2 is a vertical central section of the hanger-frame, showing the connection of the hanger-sections;

and Figs. 3, 4, 5, and 6 are details of the journal-bearings ofthe hanger-frame. drawn on a 5o larger scale, and showing the method of uniting the same.

Similar letters of reference indicate corresponding parts.

In the drawings, A- represents the support ing hanger frame ot' my improved automatic fan. The hangerframe A is composed of three arms, A', that are attached to the ceiling by enlarged heads or bearing-plates a, and

a three-armed frame or crab, B, the arms of 6o which interlock at the ends with recesses of the bearingplates, as shown in Figs. l and 2. The crab B is provided with a central socket,

b, through which a fastening-screw, b, is passed, by which the crab B and hanger-frame A are attached to and support-ed on the ceiling. The crab B serves for the purpose of adjusting the hanger-frame axially bei'oi'e at. taching it to the ceiling, so that it does not 4interfere with the driving-belt by which m'o- 7o tion is iinpartedto the fanshaft. 'The hangerfraine A is provided with two or more journal-hearings, C O, for the fan-shaft, which bearings are made of cylindrical shape and formed oftwo interlocking segmental sections, a c', ot' which one section is about twice the size of the other section and cast integral with two of the hanger-arms A', while the thirdL hanger-arm A is cast integral with the smaller section of the bearings C C. The larger seg- 8o mental section, a, of eachjournal-bearing O is provided with one ring-shaped extension, a2, while the smallersection, a', is provided with two ringshaped extensionsaa. The smaller segmental section, a', of eachjournal bearing C 85 is further provided with a central lug, a4, at each side, which lugsenter into corresponding recesses, c5, of the larger section, a, as shown in Figs. 3, 4, and 6.

The lugs 0i4 and recesses a5 of the sections a 9o aserve-to place the sections of the journal.- bearings into their proper position-toward each other when they are to be united. This is accomplished, first, by locking the sections a a by their lugs and recesses; next, by passing the fan-shaft through the same, and, lastly,

by filling the spaces between the interlocking rings of the bearingsections with Babbit or other suitable soft metal, by which the rigid union of said sections and the accurate fitting of the bearings C C to the fan-shaft is obtained, as shown in Figs. l and 2. rlhe arms A of the hanger-frame A are thus rigidly locked together by the bearings. When a longer drop of thefan is required, a hanger-frame with longer arms is used, which arms are then provided with three or more journalbearings and united in the manner described.

The tubular fan shaft D is support-ed inthe bearings C G'of the hanger-frame A, and provided at its lower end with a fan, D', the hub of which is rigidly attached to the shaft D. The upper end of the tubular fan-shaft D is provided with a friction-disk, d, above the bearing C. Through the tubular fan-shaft D extends a rotary drivingshaft, E, that is guided at its upper end in the central socket. b, of the crab B, and acted upon by a spiral sEpring, b', that isinterposed between the shaft and socket b, as shown in Fig. l. A beltand-pulley transmission imparts continuousl rotary motion to the driving-shaft E, vwhich latter is provided with a friction-disk, e, that forms frictional contact with the disk d of the fan-shaft D when the interior shaft, E, is l0wered, whereby the disks form an etl'ective friction-clutch for rotating the fan-shaft D and fan D. The friction-clutch d e is thrown in and out of gear, so as to impart rotary motion to the fan or stop the same by an adjusting device at the lower end of the tubular fan shaft D. The adjusting device consists of a screw-socket, F, that engages `an exterior screw-thread of the fan-shaft D. The socket- Fiis provided with a button, F, for being readily taken hold of. The interiorfan-shaft rests on the bottom of the socket F, and is lifted by the same when it is screwed up on the tubular fan-shaft or lowered when the socket is turned in opposite direction. The weight of the interior shaft, together with the tension of the spiral spring b', acting on the upper end of the same, produces the effective clutching of the friction-disks.

To secure the position of the tubular socket on the tubular fan-shaft D. when the same has been adjusted, it is retained by a collar, g,'that is guided by a slot, g', on a fixed pin. gz, of the fan-shaft D, said sleeve having a tooth or stop, g3, that drops into notches g* of the socket'F, as shown in Fig. l,

. When it is desired to impart rotary motion to the fan-shaft and fan, the screw-socket is turned down until the friction-disks of the shafts D and E are in contact,y whereby the driving-shaft E imparts rotary motion to the fan-shaft and fan. When it is desired to stop the fan, the socket is taken hold of by the hand and screwed up on the fan-shaft, so as to raise the interior shaft, E, and disconnect thereby1 the friction-clutch. In this manner the fan-shaft can be readily thrown in or out of motion by the simple adjustment of the screw-socket and friction-clutch.

Having thus described my invention. I claim as new and desire to secure by Letters Patent- 1. The combination of a tubular shaft, a fan attached to said shaft, an interior rotary driving-shaft, and a friction-clutch, the members of which are applied, respectively, to the fanshaft and driving-shaft, said friction-clutch imparting rotary motion to the fan-Shaft and fan, substantially as set forth.

2. The combination of a tubular shaft, a fan attached to said shaft, an interior rotary driving-shaft passing through said fan-shaft, a friction-clutch for imparting motion to the tubular fanshaft, and mechanism for lowering or raising the driving-shaft, so as to establish or interrupt the motion of the fan-shaft, substantially as set forth.

3. The combination of a tubular shaft, a fan attached to the same, a friction-disk at the upper end of the fan-shaft, a rotary driving. shaft passing through said fan-shaft and having also a friction-disk, and an adjusting device applied to the lower end of the fan-shaft, for raising or lowering the interior shaft and throwing the friction-disks in or out of mesh, substantially as set forth.

4. The combination of a tubular shaft, a fan attached to the same, an interior rotary driving-shaft, a guide-sockct attached to the ceiling in line with the driving-shaft. a spiral spring interposed between the socket and the upper end of the driving-shaft, a friction-v clutch, the members of which are applied to, the fan-shaft and driving-shaft, and a device for throwing the friction-clutch in or out of gear, substantially as set forth.

5. The combination of a tubular shaft, a fan attached to said shaft, a rotary driving-shaft passing through the fanshaft, a frictionclutch for imparting motion to the fan-shaft, and a supporting hanger-frame attached to the ceiling and composed of arms having journalbearings for the fan-shaft, and a crab having a central guide-socket for the interior drivingshaft, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

y PETER MURRAY, JR.

Vitnesses:

CARL KARP, SIDNEY MANN.

IIO 

